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    • Home
    • Environmental Sensors
      • Humidity Sensors
        • Digital Humidity Sensor SHT4x (RH/T)
        • Digital Humidity Sensor SHT3x (RH/T)
        • Digital Humidity Sensor SHT85 (RH/T)
        • Digital Humidity Sensor SHTC3 (RH/T)
        • Digital Humidity Sensor SHTC1 (RH/T)
        • Digital Humidity and Temperature Module SCC30-DB (RH/T)
        • SF2 Filter Cap
        • SHT31 Smart Gadget Development Kit
        • Digital Humidity Sensor SHTW2 (RH/T) (NRND)
      • Temperature Sensors
        • Temperature Sensor STS3x
        • Temperature Sensor STS32
      • Multi-Pixel Gas Sensors SGP
        • VOC Sensor SGP40
        • VOC Sensor SGP30 / SGPC3 (NRND)
        • Multi-Gas, Humidity and Temperature Module SVM30 (NRND)
      • Particulate Matter Sensor SPS30
      • Carbon Dioxide Sensors
        • Carbon Dioxide Sensor SCD4x
        • Carbon Dioxide Sensor SCD30
        • Carbon Dioxide Sensor STC31
      • Formaldehyde Sensor Module SFA30
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      • CO2 Sensor STC31

        The most efficient way to measure high CO2 concentrations

        The STC31 is a chip-sized gas concentration sensor for high range, accurate CO2 measurements designed for high-volume production. The sensor is based on a revolutionized thermal conductivity measurement principle, which results in superior repeatability and long-term stability. This makes the STC31 the perfect choice for applications where reliability is key.

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    • Flow Sensors
      • Liquid Flow Meters
        • Lx – Compact Liquid Flow Meters
          • Liquid Flow Meter LG16
          • Liquid Flow Meter LG01
          • Liquid Flow Meter LS32-1500
        • SLx – Standalone Liquid Flow Meters
          • Liquid Flow Meter SLI
          • Liquid Flow Meter SLG
          • Liquid Flow Meter SLQ-QT105
          • Liquid Flow Meter SLQ-QT500
          • Liquid Flow Meter SLS-1500
        • Liquid Flow Sensor SLF3x
        • Liquid Flow Sensor LPG10
        • Liquid Flow Sensor LD20
        • Liquid Flow Meter Kits
        • Customized (OEM) Liquid Flow Meters
      • Mass Flow Meters for Gases
        • Mass Flow Meter SFM3000
        • Mass Flow Meters SFM3003 and SFM3013
        • Mass Flow Meter SFM3019
        • Mass Flow Meter SFM3100
        • Mass Flow Meter SFM3119
        • Mass Flow Meter SFM3200
        • Mass Flow Meter SFM3300
        • Mass Flow Meter SFM3400
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        • Mass Flow Meter SFM5400
        • Mass Flow Meter Evaluation Kits
        • Customized (OEM) Mass Flow Meters
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      • Gas Sensors
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      • Evaluation Kit SEK-Flow Sensing
      • Product Highlight

        Evaluation kit for the single-use liquid flow sensor LD20-2600B

        The LD20-2600B single-use liquid flow sensor for fast, precise and reliable measurements of the lowest flow rates in biomedical applications was successfully launched three years ago. The evaluation kit for this OEM liquid flow sensor can now also be purchased online via Sensirion's distribution network.

        Read more

    • Markets
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        • H2 Measurement
      • Medical
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      • Our Markets

        Sensirion Markets Icons

        Experts for Smart Sensor Solutions

        Sensirion's sensors are used in a wide range of markets and different applications. Our high-quality environmental and flow sensors and sensor solutions improve energy efficiency and sustainability. They increase our safety, support our health and raise the quality of life. 

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    • About us
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      • Sensirion – The Sensor Company

        Sensirion Worldmap

        Sensirion Worldwide

        Founded in 1998 Sensirion has become the leading manufacturer of flow and environmental sensors solutions. The company now employs people in various countries such as the USA, South Korea, Japan, China, Taiwan, and Germany. The headquarters in Switzerland is responsible for research, development, and production. 

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      • Most Popular Employer in Switzerland 2019

        Learn more: www.sensirion.com/GPTW

         

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    • Sensirion Technology

      CMOSens® Technology

      All Sensirion products are characterized by the fusion of the sensor element and the signal conditioning electronics on a single silicon CMOS chip.

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    • Sensirion – The Sensor Company
    • CMOSens® Technology

    CMOSens® - Core of Sensirion's Sensor Solutions

    Sensirion sensor products guarantee outstanding performance and correspondingly high customer utility. They are all based on our innovative CMOSens® Technology, which enables the sensor component to be combined with the analog and digital signal processing circuitry on a tiny CMOS silicon chip. This is implemented in advanced semiconductor technology, using specific microsystem processing steps to produce the microsensor structures on specially developed and patented semiconductor parts. The resulting sensor chips enable precise and reliable sensing of the desired physical parameters, such as relative humidity, temperature, or mass flow. CMOSens® accordingly represents a guarantee of high precision, reliability, and functionality combined with cost effectiveness.

    Precision and Reliability

    Combining the sensor with the signal processing circuitry ensures that the weak analog sensor signals can be amplified and digitized with high precision directly where they are generated, thereby making them resistant to interference. This provides the basis for the extremely high measurement accuracy of CMOSens® sensors. With the elimination of fault-prone solder joints, users also benefit from outstanding long-term stability, as has been proven by extensive field tests. Furthermore, CMOSens® Technology is based on proven and reliable standard processes used in semiconductor fabrication, which also contribute to the high reliability and reproducibility of Sensirion sensor solutions.

    Functionality

    CMOSens® chips are intelligent microsensor systems with a high degree of integration and functionality. This is provided by analog and digital signal processing, which is integrated on the semiconductor chip along with the sensor component. Our chips are further enhanced by additional intelligence for self-tests, low-power operation, and built-in linearization, digitization and temperature compensation (the latter using an integrated temperature sensor). The present high level of functionality and intelligence results from many years of development work, as can be seen from the evolutionary stages leading up to the present chip generation:

    1st generation: miniaturized sensor component

    2nd generation: 1st generation plus amplifier and A/D converter

    3rd generation: 2nd generation plus intelligence for linearization and temperature compensation

    4th generation: 3rd generation plus memory to hold calibration data

    Cost Effectiveness

    As a standard semiconductor fabrication process, CMOS is optimized for reliable mass production. Sensors fabricated in CMOSens® Technology are based on this cost-optimized standard process, which assures customers of an optimal price/performance ratio. Merging the sensor components with the signal processing circuitry on a single small chip allows system costs and package sizes to be reduced even further compared with conventional sensors. As a result, users obtain extremely high reliability and quality at a lower price.

    Testing & Calibration

    An important technical benefit for customers of Sensirion products is that our digital sensor systems are fully calibrated. This means that expensive and difficult calibration procedures no longer have to be performed by the customer. Our in-house sensor calibration and testing infrastructure allows effective testing and calibration procedures according to established quality standards. The results are high quality, fully interchangeable multi sensor modules at unbeatable price-performance ratios.


    Overview

    CMOSens® in Gas Sensing

    Using Sensirion’s CMOSens® Technology, the SGP offers a complete sensor system on a single chip featuring a digital I2C interface, a temperature-controlled microhotplate, as well as preprocessed and calibrated indoor air quality signals.

    Learn more

    CMOSens® with Humidity Sensors

    In addition to the resistive method, the capacitive measurement principle, above all, established and proved itself as a standard in the past. For this principle, the sensor element is built out of a capacitor.

    Learn more

    CMOSens® Technology for Gas Flow

    The CMOSens® sensor provides error-free gas flow metering that remains stable over long periods of time and generates a very fast, high-precision sensor signal.

    Learn more

    CMOSens® Technology for Liquid Flow

    Sensirion’s liquid flow sensing technology offers a wealth of benefits, mainly in terms of speed and precision. It allows liquid mass flow measurements of low (100 ml/min) and even ultra-low liquid flow rates of nl/min by compact and light-weight sensor designs.

    Learn more

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